silverlight - how to find the intersection of two Writeablebitmap using c# -

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i have 2 black , white pictures in writeablebitmap . , want find intersection between them check if pictures have similar area. size same.

i trying , sure missing or doing wrong because not getting result want.

int[] p1 = pic1.pixels; int[] p2 = pic2.pixels; int len1 = p1.length; int intersection=0;  (int k = 0; k < len; k++)  {       if (p[k] == p1[k])             {                 intersection++;             }   }

am going wrong or code can somehow work?


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